Nickelodeon Universe, the indoor theme park at Mall of America, is celebrating its 10th anniversary this March.

Ten years ago, Nickelodeon and Mall of America teamed up to create the first-ever Nickelodeon Universe indoor theme park, where the Nick Toons world comes to life.

Each year, millions of guests visit this one-of-a-kind theme park, and on March 17, Nickelodeon Universe will celebrate its 10th birthday with a special 10-hour event.

“Nickelodeon is one of the most beloved entertainment brands and we couldn’t be happier celebrating our partnership of 10 years together,” said Jill Renslow, SVP of business development and marketing. “Since opening Nickelodeon Universe, we’ve thrilled, excited, slimed and delighted millions of guests with larger than life events, new rides and attractions!”

To commemorate the occasion, Mall of America will celebrate for 10 hours straight on Saturday, March 17 with a different event each hour. The celebration will begin with an orange velvet rope drop and a streamer cannon blast, followed by a variety of character meet-and-greets, activities, cupcakes and, of course, slime.

Guests at Nickelodeon Universe can meet characters like SpongeBob SquarePants.

“The grand opening of Nickelodeon Universe over a decade ago was a pivotal moment for our brand, allowing families to interact with Nickelodeon shows and characters they love on exhilarating rides and attractions,” said Sharon Cohen, executive vice president of The Nick Experience. “We look forward to our continued partnerships with Mall of America and bringing many more hours upon hours of excitement for fans of all ages.”

The seven-acre Nickelodeon Universe is located inside Mall of America, the largest retail and entertainment center in the U.S. The park features 27 rides and attractions, including roller coasters and the longest indoor zipline in North America.

Many fan-favorite Nickelodeon characters can be found there, like SpongeBob SquarePants, Teenage Mutant Ninja Turtles, Dora the Explorer and PAW Patrol.